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- Ufficio Marconi, Roma, 385 results
- Marconi's Wireless Telegraph Co. Ltd., Londra, 180 results
- Electrical and Musical Industries Ltd. - E.M.I., Hayes (Middlesex), 113 results
- Marconi Offices, Londra, 84 results
- Westminster Bank, Londra, 80 results
- Marconi International Marine Communications Co. Ltd., 63 results
- SocietĂ italiana Marconi, Roma, 63 results
- Formichi Carlo, 51 results
- Jacchia Eugenio, 47 results
- Unione accademica nazionale, Roma, 45 results